1. Material Science and Engineering Research Group, Faculty of Mechanical and Aerospace Engineering, Institut Teknologi Bandung, Jl. Ganesha 10, Bandung 40132, Indonesia
2. Department of Physics, Faculty of Mathematics and Natural Science, Institut Teknologi Bandung, Bandung, 40132, Indonesia
3. Institute of Semiconductor Technology (IHT) and Laboratory for Emerging Nanometrology (LENA), Technische Universität Braunschweig, Hans-Sommer-Straße 66, Braunschweig, 38106, Germany